And only HDMI 2.0, not 2.1. At least it has DisplayPort.

it should use the linux version automatically, as long as you don’t have any overrides in the compatibility (proton) settings

I think you’ll have to be more specific. Where did you get the driver from? Did you add any Nvidia repos or are you using only the vanilla popOS repos? Or did the the official repos push an update that doesn’t (didn’t) work? In that case, definetly ask in their support forum and maybe open an issue.

Not too familiar with that specific distro, but it is usually a bad idea to add different repos unless you know what you’re doing. Getting the drivers through the official repos might be a couple weeks (possibly months) late, but it will always be the safest bet.

Don’t think so, they say you can have it delivered or pick it up in a store on the 5th of June, the official release date

In Germany, you can just pre order the system from the large retailers right now. Even before you can on Nintendos own website.

They would, if you looked at them individually. It’s a percentage based on peak of any of the searched terms. This means at its peak only 25% as many people were googling the ROG vs the Deck at its (separate) peak.